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Christian Ledermann commented on Sina Kazemi's blog post Trying to build a DIY autonomous sailing boat.
Mar 20, 2012
Christian Ledermann posted a blog post
GIScience & Remote Sensing, Volume 48, Number 1 / January-March 2011“Although potential applications abound, small-scale unmanned aerial vehicles have not yet been widely used for environmental remote sensing. Several challenges remain to be…
Apr 14, 2011
Christian Ledermann replied to Wyliest's discussion Cheap and eazy airframe to be made available to all
"Have a look at: http://www.aircrash.org/burnelli/modlist.htm

The Burnelli designs are said to be very crashworthy http://www.aircrash.org/burnelli/chrono1.htm
and given the age of the designs they should be in the public domain"
May 15, 2008